LG SoundPlate LAP340, Service Manual

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Loca No. Description Pin No. Voltage Spec Measured Voltage
Main Board
C707
Capacitor,AL,Radial
1 Min 20V 20.79V
C708 1 Min 20V 20.79V
C709 1 Min 20V 20.79V
C710 1 Min 20V 20.79V
C711 1 Min 20V 20.79V
C712 1 Min 20V 20.79V
C7L6
Capacitor,AL,Chip
1 >0V 0.982V
C7L7 1 >0V 1.018V
C7L8 1 >0V 1.017V
C7L9 1 >0V 0.905V
C7R0 1 >0V 0.981V
IC100 IC,Microcontrollers 48
3.3V(MICOM)_
(0.5V~6.5V)
3.375V
IC101 IC,EEPROM 8
3.3V(MICOM)_
(1.8V~5.5V)
3.374V
IC301
IC,Digital Signal Proces-
sors
12,23,48,58,90,114,127 1.35V(VDD)±5% 1.35V
14,28,45,64,93,115 3.3V(VDD)±5% 3.362V
72,82 3.3V(ADAC)±5% 3.362V
95 3.3V(PLL)±5% 3.362V
97 3.3V(AADC)±5% 3.362V
104 1.35V(AADC)±5% 1.35V
111 3.3V(USB)±5% 3.362V
110 3.3V(VDAC)±5% 3.363V
IC302 IC,SDRAM 1,3,9,14,27,43,49 3.3V(VDD)±0.3V 3.363V
IC303 IC,Serial Flash Memory 8 3.3V(VDD)_(2.7V~3.6V) 3.364V
IC603
IC,DC,DC Converter
2 20V_(3.5V~42V) 20.78V
10 9.5V(VCC) 9.52V
IC604
2 20V(3.5V~42V) 20.78V
10 3.7V(3.7VA) 3.74V
IC702
IC,Line Driver
9
3.3V(AVCC)_
(3.0V~3.6V)
3.373V
IC703 9
3.3V(AVCC)_
(3.0V~3.6V)
3.372V
IC704 9
3.3V(AVCC)_
(3.0V~3.6V)
3.371V
3-36 3-35
CIRCUIT VOLTAGE CHART
MEMO